var CloudCmd, Util, DOM, CloudFunc, MenuIO, Format;

(function(CloudCmd, Util, DOM) {
    'use strict';
    
    CloudCmd.EditFile = function EditFileProto(callback) {
        var Info = DOM.CurrentInfo;
        var Dialog = DOM.Dialog;
        var exec = Util.exec;
        var EditFile = this;
        var config = CloudCmd.config;
        
        var Menu,
            
            TITLE       = 'Edit',
            
            Images      = DOM.Images,
            MSG_CHANGED,
            ConfigView  = {
                beforeClose: function() {
                    exec.ifExist(Menu, 'hide');
                    isChanged();
                }
            };
        
        function init(callback) {
            var editor;
            
            exec.series([
                CloudCmd.Edit,
                function(callback) {
                    editor = CloudCmd.Edit.getEditor();
                    callback();
                },
                function(callback) {
                    authCheck(editor);
                    callback();
                },
                
                function(callback) {
                    setListeners(editor);
                    callback();
                },
                function(callback) {
                    EditFile.show(callback);
                },
            ], callback);
        }
        
        this.show = function() {
            Images.show.load();
            
            Info.getData(function(error, data) {
                var path = Info.path;
                var isDir = Info.isDir;
                var name = Info.name;
                
                if (isDir)
                    name += '.json';
                
                if (error)
                    return Images.hide();
                
                setMsgChanged(name);
                
                CloudCmd.Edit
                    .getEditor()
                    .setValueFirst(path, data)
                    .setModeForPath(name)
                    .setOption('fontSize', 16)
                    .enableKey();
                
                CloudCmd.Edit.show(ConfigView);
            });
        };
        
        this.hide = function() {
            CloudCmd.Edit.hide();
        };
        
        function setListeners(editor) {
            var element = CloudCmd.Edit.getElement();
            
            DOM.Events.addOnce('contextmenu', element, setMenu);
            
            editor.on('save', function(value) {
                DOM.setCurrentSize(Format.size(value));
            });
        }
        
        function authCheck(spawn) {
            if (!config('auth'))
                return;
            
            spawn.emit('auth', config('username'), config('password'));
            spawn.on('reject', function() {
                Dialog.alert(TITLE, 'Wrong credentials!');
            });
        }
        
        function setMenu(event) {
            var position = {
                x: event.clientX,
                y: event.clientY
            };
            
            event.preventDefault();
            
            !Menu && DOM.loadRemote('menu', function(error) {
                var noFocus;
                var options = {
                    beforeShow: function(params) {
                        params.x -= 18;
                        params.y -= 27;
                    },
                    
                    afterClick: function() {
                        !noFocus && editor.focus();
                    }
                };
                
                var editor = CloudCmd.Edit.getEditor();
                
                var menuData = {
                    'Save           Ctrl+S' : function() {
                        editor.save();
                    },
                    'Go To Line     Ctrl+G' : function() {
                        noFocus = true;
                        editor.goToLine();
                    },
                    'Cut            Ctrl+X' : function() {
                        editor.cutToClipboard();
                    },
                    'Copy           Ctrl+C' : function() {
                        editor.copyToClipboard();
                    },
                    'Paste          Ctrl+V' : function() {
                        editor.pasteFromClipboard();
                    },
                    'Delete         Del'    : function() {
                        editor.remove('right');
                    },
                    'Select All     Ctrl+A' : function() {
                        editor.selectAll();
                    },
                    'Beautify       Ctrl+B' : function() {
                        editor.beautify();
                    },
                    'Minify         Ctrl+M' : function() {
                        editor.minify();
                    },
                    'Close          Esc'    : function() {
                        EditFile.hide();
                    }
                };
                
                if (error)
                    return Dialog.alert(TITLE, error);
                
                if (Menu || !MenuIO)
                    return;
                    
                var element = CloudCmd.Edit.getElement();
                
                Menu = new MenuIO(element, options, menuData);
                Menu.show(position.x, position.y);
            });
        }
        
        function setMsgChanged(name) {
            MSG_CHANGED = 'Do you want to save changes to ' + name + '?';
        }
        
        function isChanged() {
            var editor = CloudCmd.Edit.getEditor();
            var is = editor.isChanged();
            
            is && Dialog.confirm(TITLE, MSG_CHANGED, {cancel: false})
                .then(function() {
                    editor.save();
                });
        }
        
        init(callback);
    };
    
})(CloudCmd, Util, DOM, CloudFunc);